Terbium is a synthetic element that is derivied from other elements/coumponds it ccan oxidize easily and is used in flourcent lamps and tvs. it is aarth element. Terbium is named after a town in scotland? i think. It was discoverd by Carl gustaff mossander in 1843 it its melting and boiling are as follows.
Melting point 1356 C
boiling point3230 C
its a fuel stabilizer
was found in ytterby with other rare earth minerals
density is 8.23 so it sinks in pure water
a 180 year half life250px-Terbium-2.jpg
can be diluted in sulfuric acid
its the green light in your tv
it has a 1.2mg/km
you can cut it with a knife
used in sonar
element number 65
its TR